The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper deals with the use of the integrated circuit electromagnetic model (ICEM) to analyze, predict, and optimize auto compatibility and electromagnetic emission at PCB level. ICEM is currently under standardization process (IEC62014-3). The basic ICEM architecture is composed of a power distribution network model and an internal current source modeling digital activity. Such an approach enables...
This brief presents a new structure of active inductors. These synthetic inductors are designed using current controlled voltage sources. The signal flow graph method is used for this purpose. For the practical realization, operational transresistance amplifiers (OTRAs) are replicated using current conveyors. The proposed inductors have very interesting properties because the value of its inductance...
Mathematical equations are possible to simulate with various electronic circuits. Inductors and capacitors intrinsically are capable of integrating and differentiating, and active components alone can realize such algebraic operations as addition and multiplication. In this work, linear differential equations are shown to be implemented with three active components, namely operational amplifiers(Opamp),...
This paper presents the theoretical analysis, design and simulation of a single phase single stage boost dc-ac converter powered from PV array. The main attribute of the boost inverter topology is the fact that it generates an ac output voltage larger than the dc input one, depending on the instantaneous duty cycle. This paper proposes an accurate solar panel simulation to incorporate the temperature...
This article present the CMOS charge pump circuit which is operated in current mode. MOS transistors in this circuit act as the switches (charge transfer switch) and current source for store the charge from the supply voltage into the fly capacitor and transfer charge from the fly capacitor to the output (output capacitor and resistive load). All of the MOSFET which act as switch operated in saturation...
This article presents a 3rd order current-mode quadrature oscillator using current controlled current conveyor transconductance amplifiers (CCCCTAs) as active elements. The proposed circuit is realized from a non-inverting lossless integrator and an inverting second-order lowpass filter. The oscillation condition and oscillation frequency can be electronically/orthogonally controlled via input bias...
Performance of the low-voltage and power-efficient analog-to-digital (A/D) converters, like cyclic and pipeline topologies, can be significantly enhanced by using advanced analog cores. This paper describes a careful switched capacitor (SC) architecture that can be used as a simple low-voltage implementation of the flip-around sample-and-hold (S/H) circuit. The S/H has been simulated in a 0.13 ??m...
Development in electrical power transmission system requires the use of circuit breakers with increasing breaking capacity. At present circuit breakers are to be installed on 245 kV to 1100 kV power system with short circuit ratings up to 120 kA. To test high voltage CBs, direct testing using the power system or short circuit alternators are not feasible. The testing of high voltage CBs of larger...
A new electronically tunable current-mode high-Q bandpass filter employing second-generation current controlled conveyor (CCCII)-based first-order all-pass filters is presented. The proposed filter uses only three CCCIIs, one current-controlled resistor and two grounded capacitors. The center frequency (??c) and the quality factor (Q) can be independently adjusted through the bias current of the CCCII...
A novel pixel readout circuit using a switched-capacitor integrator mode background suppression technique is proposed for long wavelength infrared (LWIR) focal plane arrays. It has ultra-low background suppression non-uniformity (BSNU) and no additional shot noise when suppressing the background current for improving signal-to-noise ratio and dynamic range. The BSNU can be as low as 529 ppm for a...
Passive RFID application is often used in back scatter mode where a weak reflected signal is relied upon by reader systems. This limits the application of the technology as the reader and tag distance is constrained. This paper presents a passive design where planar capacitors are used to locally store charges to power a tag based on newer CMOS technology. In this paper BSIM4 transistor model based...
This paper addresses the capacitance estimation for an immunosensor chip (ISC). It is known that the capacitance of an antibody, or other ligand such as an scFv molecule, changes when it binds with an antigen. If the sensor plane of the ISC is coated with an array of a specific receptor or ligand that binds to the protein on the virus, then the diseased cells can be detected, captured, and dealt with...
In this paper, influences on CMOS voltage controlled oscillator (VCO) caused by dummy metal fills are investigated. Two fully integrated VCOs are fabricated, tested and verified in 0.18-mum 1P6M bulk CMOS technology. The area-consuming inductors and capacitors of the VCOs are implemented by multilayer complementary-conducting- strip transmission lines (CCS TLs) and metal-oxcide-metal (MOM) capacitors,...
In this work, the gate-to-bulk capacitance property of MOS transistors is employed to design high-speed two-stage operational amplifiers (opamp). Traditional design of two-stage opamps recommends MIM or PIP capacitors to avoid instability in closed-loop applications. In addition to area efficiency achieved by replacing these capacitors with MOS transistors, the integration of the opamp would become...
A novel circuital model for a shunt connected RF MEMS coplanar switch, based on a fully analytical approach, is presented. The numerical simulations performed with the proposed new model are in good agreement with experimental measurements.
Compact pHEMT amplifiers, which are composed of newly developed miniaturized multilayer inductors and capacitors, have been designed, fabricated and characterised. Their measured performances are presented and compared with those of amplifiers composed of conventional planar components. The results show that multilayer technology reduces the size of the amplifiers by approximately 50% while maintaining...
According to the law of conversion of energy, the charge of the average dc capacitor voltage of the active power filter can supply the real power flow information. If the average dc capacitor voltage is controlled to be a constant referenced value, it is necessary to drive the required filter compensating current into the supply, hence removing the effects of the load harmonics. The parts of the main...
Nowadays, characteristics analysis of doubly salient electro-magnet machine is mostly about starter or generator separately, while transient characteristics of switching from starter to generator are less studied. Process of switching from starter to generator is an important part of the whole starter/generator system. In this paper, integral MATLAB model of doubly salient electro-magnet starter/generator...
This paper describes how to optimize the winding structure of LSPM with FEM, which includes the determination of turns ratio of the main and auxiliary windings, and the selection of capacitor. The motor can be optimized on the ground of the rough value of the windings ratio and the capacitor. The winding structure of the LSPM motor is very essential to form circular field, which is also of great importance...
CDM protection techniques for two important circuits are developed. In the first protection dummy logic circuits are added for separated small power domains. The dummy logic circuit can assist parallel-connected ESD protection devices to discharge CDM current at the initial discharge phase of the CDM event. The second protection technique for input gate protection is to use the stack-structured input...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.